我必须调整informatica映射性能。源和目标是sql server表。映射包含SQ断开连接的lookup-exp-target。源表和目标表相同。查找查询在数据库中耗时7-8分钟，并且根据会话日志，查找缓存的创建也需要时间。我可以看到，创建查找缓存需要花费一些时间，但我无法获得确切的问题。
您能否建议如何调整此会话日志或查找查询
下面是会话日志：-
Severity Timestamp Node Thread Message Code Message
INFO 1/2/2020 2:38:17 AM WRITER_1_*_1 WRT_8158
*****START LOAD SESSION*****
Load Start Time: Thu Jan 02 02:38:17 2020
Target tables:
Dim_Cust_Ord
INFO 1/2/2020 2:38:17 AM WRITER_1_*_1 WRT_8005 Writer run started.
INFO 1/2/2020 2:38:17 AM READER_1_1_1 RR_4049 RR_4049 SQL Query issued to database : (Thu Jan 02 02:38:17 2020)
INFO 1/2/2020 2:38:17 AM READER_1_1_1 RR_4029 SQ Instance [SQ_Dim_Cust_Ord] User specified SQL Query [SELECT
DISTINCT Dim_Cust_Ord.Business_Unit,
Dim_Cust_Ord.PO_Num,
Dim_Cust_Ord.Account_Num
FROM
Dim_Cust_Ord Dim_Cust_Ord with(NOLOCK)
WHERE
(Dim_Cust_Ord.PO_IND IS NULL OR Dim_Cust_Ord.PO_IND='O')
AND Dim_Cust_Ord.Business_Unit IN ('C','W','R','U')]
INFO 1/2/2020 2:38:17 AM WRITER_1_*_1 WRT_8270 Target connection group #1 consists of target(s) [Dim_Cust_Ord]
INFO 1/2/2020 2:38:17 AM WRITER_1_*_1 WRT_8003 Writer initialization complete.
INFO 1/2/2020 2:38:17 AM READER_1_1_1 BLKR_16007 Reader run started.
INFO 1/2/2020 2:38:19 AM READER_1_1_1 RR_4050 RR_4050 First row returned from database to reader : (Thu Jan 02 02:38:19 2020)
INFO 1/2/2020 2:38:19 AM LKPDP_1 TM_6660 Total Buffer Pool size is 609824 bytes and Block size is 65536 bytes.
INFO 1/2/2020 2:38:19 AM LKPDP_1:READER_1_1 DBG_21438 Reader: Source is [BIPAOSQL@SLM], user [informat]
INFO 1/2/2020 2:38:19 AM LKPDP_1:READER_1_1 BLKR_16007 Reader run started.
INFO 1/2/2020 2:38:19 AM LKPDP_1:READER_1_1 BLKR_16003 Initialization completed successfully.
INFO 1/2/2020 2:38:20 AM LKPDP_1:READER_1_1 RR_4049 RR_4049 SQL Query issued to database : (Thu Jan 02 02:38:20 2020)
INFO 1/2/2020 2:41:49 AM LKPDP_1:READER_1_1 RR_4050 RR_4050 First row returned from database to reader : (Thu Jan 02 02:41:49 2020)
INFO 1/2/2020 2:41:49 AM LKPDP_1:TRANSF_1_1 DBG_21079 DBG_21079 Creating Lookup Cache : (Thu Jan 02 02:41:49 2020)
INFO 1/2/2020 2:41:49 AM LKPDP_1:TRANSF_1_1 TT_11195 Warning: Unsorted input found when building the cache for the Lookup transformation [LKP_FACT_BOOK]. The current number of entries in the index cache is 2. For optimal performance, use sorted input.
INFO 1/2/2020 2:59:16 AM LKPDP_1:READER_1_1 BLKR_16008 Reader run completed.
INFO 1/2/2020 2:59:16 AM LKPDP_1:TRANSF_1_1 DBG_21641 LKP_FACT_BOOK: Index cache size = [178960000], Data cache size = [357916672]
INFO 1/2/2020 2:59:16 AM LKPDP_1:TRANSF_1_1 DBG_21297 Lookup cache row count : 30101473
INFO 1/2/2020 2:59:16 AM LKPDP_1:TRANSF_1_1 DBG_21294 DBG_21294 Lookup cache creation completed : (Thu Jan 02 02:59:16 2020)
INFO 1/2/2020 2:59:16 AM LKPDP_1:TRANSF_1_1 DBG_21682 Lookup table row count : 30101473
INFO 1/2/2020 2:59:16 AM LKPDP_1:TRANSF_1_1 DBG_21216 Finished transformations for Source Qualifier [LKP_FACT_BOOK{{DSQ}}]. Total errors [0]
INFO 1/2/2020 2:59:16 AM LKPDP_1:TRANSF_1_1 CMN_1671 Created new cache files PMLKUP1301_4_0_2704068W64.[dat/idx] in directory F:\Informatica\InfoCache for Lookup [LKP_FACT_BOOK].
INFO 1/2/2020 2:59:17 AM WRITER_1_*_1 WRT_8167 Start loading table [Dim_Cust_Ord] at: Thu Jan 02 02:59:16 2020
INFO 1/2/2020 2:59:36 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 02:59:35 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 10296 Applied: 10296 Rejected: 0 Affected: 25585
Severity Timestamp Node Thread Message Code Message
INFO 1/2/2020 2:59:53 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 02:59:52 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 20592 Applied: 20592 Rejected: 0 Affected: 49811
INFO 1/2/2020 3:00:13 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:00:12 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 30888 Applied: 30888 Rejected: 0 Affected: 74052
INFO 1/2/2020 3:00:34 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:00:34 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 41184 Applied: 41184 Rejected: 0 Affected: 101520
INFO 1/2/2020 3:00:56 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:00:56 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 51480 Applied: 51480 Rejected: 0 Affected: 129791
INFO 1/2/2020 3:01:18 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:01:18 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 61776 Applied: 61776 Rejected: 0 Affected: 157788
INFO 1/2/2020 3:01:41 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:01:41 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 72072 Applied: 72072 Rejected: 0 Affected: 189511
INFO 1/2/2020 3:02:05 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:02:05 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 82368 Applied: 82368 Rejected: 0 Affected: 215331
INFO 1/2/2020 3:02:23 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:02:23 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 92664 Applied: 92664 Rejected: 0 Affected: 243820
INFO 1/2/2020 3:02:47 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:02:47 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 102960 Applied: 102960 Rejected: 0 Affected: 271753
INFO 1/2/2020 3:03:11 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:03:10 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 113256 Applied: 113256 Rejected: 0 Affected: 297470
INFO 1/2/2020 3:03:35 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:03:34 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 123552 Applied: 123552 Rejected: 0 Affected: 324556
INFO 1/2/2020 3:03:59 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:03:59 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 133848 Applied: 133848 Rejected: 0 Affected: 351867
INFO 1/2/2020 3:04:25 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:04:24 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 144144 Applied: 144144 Rejected: 0 Affected: 377844
INFO 1/2/2020 3:04:34 AM READER_1_1_1 BLKR_16008 Reader run completed.
INFO 1/2/2020 3:04:34 AM READER_1_1_1 BLKR_16019 Read [158430] rows, read [0] error rows for source table [Dim_Cust_Ord] instance name [Dim_Cust_Ord]
INFO 1/2/2020 3:04:39 AM TRANSF_1_1_1 DBG_21216 Finished transformations for Source Qualifier [SQ_Dim_Cust_Ord]. Total errors [0]
INFO 1/2/2020 3:04:43 AM WRITER_1_*_1 WRT_8161
TARGET BASED COMMIT POINT Thu Jan 02 03:04:43 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 154440 Applied: 154440 Rejected: 0 Affected: 401641
INFO 1/2/2020 3:04:48 AM WRITER_1_*_1 WRT_8168 End loading table [Dim_Cust_Ord] at: Thu Jan 02 03:04:47 2020
INFO 1/2/2020 3:04:48 AM WRITER_1_*_1 WRT_8035 Load complete time: Thu Jan 02 03:04:47 2020
LOAD SUMMARY
============
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 158430 Applied: 158430 Rejected: 0 Affected: 412362
INFO 1/2/2020 3:04:48 AM WRITER_1_*_1 WRT_8141
Commit on end-of-data Thu Jan 02 03:04:47 2020
===================================================
WRT_8036 Target: Dim_Cust_Ord (Instance Name: [Dim_Cust_Ord])
WRT_8041 Updated rows - Requested: 158430 Applied: 158430 Rejected: 0 Affected: 412362
INFO 1/2/2020 3:04:48 AM MANAGER PETL_24031
***** RUN INFO FOR TGT LOAD ORDER GROUP [1], CONCURRENT SET [1] *****
Thread [READER_1_1_1] created for [the read stage] of partition point [SQ_Dim_Cust_Ord] has completed.
Total Run Time = [1577.617025] secs
Total Idle Time = [1574.481379] secs
Busy Percentage = [0.198758]
Thread [TRANSF_1_1_1] created for [the transformation stage] of partition point [SQ_Dim_Cust_Ord] has completed.
Total Run Time = [1579.801052] secs
Total Idle Time = [1574.840183] secs
Busy Percentage = [0.314019]
Thread work time breakdown:
EXP_DIM_CUST_ORD: 100.000000 percent
Thread [WRITER_1_*_1] created for [the write stage] of partition point [Dim_Cust_Ord] has completed.
Total Run Time = [1531.502834] secs
Total Idle Time = [1199.889383] secs
Busy Percentage = [21.652813]
INFO 1/2/2020 3:04:48 AM WRITER_1_*_1 WRT_8043 *****END LOAD SESSION*****
INFO 1/2/2020 3:04:48 AM WRITER_1_*_1 WRT_8006 Writer run completed.
查询查询：-
SELECT
SUM(Fact_Book.Qty) as Qty,
Fact_Book.Num as Num,
Fact_Book.Sold_To as STo,
(case when Fact_Book.Div = '50'
then 'C'
when Fact_Book.Div = '40'
then 'R'
when Fact_Book.Div = '98'
then 'U'
else 'W'
end ) as Business_unit
FROM
Fact_Book with(NOLOCK)
GROUP BY
Fact_Book.Num,
Fact_Book.STo ,
(case when Fact_Book.Div = '50'
then 'C'
when Fact_Book.Div = '40'
then 'R'
when Fact_Book.Div = '98'
then 'U'
else 'W'
end )```
如果源和目标是相同的物理表，并且查找使用相同的数据库，则可以利用Pushdown Optimization的优势-只需在会话属性中启用它并将其设置为Full。
如果无法，请尝试将查询更改为连接器，对Source Qualifier上的数据进行适当排序，然后启用Sorted input连接器属性。
让我知道是否会有任何问题-还有更多可用的选项。